That has always been my suspicion.
I have always been suspicious of that. My first introduction to Apple (I am now a convert) was in a co. where each mgr. could choose pc's or Apples for his or her dep't. My dep't was Apple.
The co. had 300 people at our location, and 200 used pc's; 100 used Apples. The IT dep't had 10 employees. 9 were pc specialists and 1 was Apple. Hmmm -